US682663A - Timber-dolly. - Google Patents

Description

No. 682.663. Patented Spt. I7, 190|.

J. L. BAYLEY.

TIMBER DULLY.

(Application led Feb. 28, 1901.)

(No Model.)

witnesses.. Z, oz'

UNITED STATES l PATENT OEEICE.

JAMES L. BAYLEY, OF SPOKANE, WASHINGTON.

TIMBER-DOLLY.

srncrrren'rrolv forming part of Lettere Patent Neceaeee, dated september 17, 1901,. Application filed February 28, 1901. Serial ITo. 49,188. (No model.)

To all whom it may concern:

Be it known that l, JAMES L. BAYLEY, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Timber-Dollies; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to whichitappertains to make and use the same.

This invention relates to a sort of truck used in and about lumber-mills and all heavy timber construction for the easy and rapid handling of timbers; and the object of the invention is to improve the construction of such trucks, commonly known as dollies, so as to reduce their weight, while retaining the same relative strength, and provide better means for lubricating them.

The nature of the invention will fully appear from the description and claims following, reference being had to the accompanying drawings, in which- Figure l is a side` elevation of my improved dolly as in use. Fig. 2 vis a top View of the same. Fig. 3 is a central transverse section of the-same. Fig. 4 is an end view of the roll and its attached spider. Fig. 5 is a fragment of the main frame, taken on the line a b. Fig. 6 is a View of the same part as seen from the under side.

For convenience in description the dolly may be considered as in the position shown in Fig. l, though in practice it is used either side up and about equally in either position.

Referring now to the drawings, A is a rectangular frame of stout timbers A' and crossbeams A2. The usual practice is to connect these timbers by mortise and tenen, and the effect of this is so to weaken the parts that the timbers must for that reason be made much heavier than would otherwise be necessary. As the dolly must itself be handled more or less, it is desirable to make it as light as practicable, While at the same time retaining ample strength for durability and the hard service to which it is subjected. Instead, therefore, of joining the timbers by mortise and tenon I provide the improved joint illustrated in Figs. 2, 5, and 6.

0n the inner sides of the longitudinal timber A are made diagonal gains A2, and the ends of the timbers A2 are correspondingly beveled at A4, sov as to abut on the inclined faces of said gains. The side timbers are held in close contact with the cross-beams by a pair of tie-rods B, provided with suitable nuts B and washers B2, and the parts are held securely against vertical dislocation by bolts B3, passing vertically through the side beams A and partially through the inclined ends of the cross-beams, as shown in Fig. 5. The holes `through which these bolts pass are counterbored at the bottom of the frame, so that the same may rest flat on the door or present a smooth surface for the log to roll over when the other side is up. Under the heads of the bolts should be placed washers B4, and the upper ends are provided with suitable nuts B5 and washers B2. Across the middle of this frame is placed a roll C. To secure the requisite lightness with great strength, the roll is made tubular and is provided With suitable heads C', fitted to its ends, as by the miter-joints shown. The heads are held securely in place by tie-rods D, provided with nuts D', four of such tierods being preferred in practice. Outside the heads are placed spiders E, having sockets E' in their arms to takethe nuts D and prevent their Working loose. The outer sides of the spider-hubs E2 are faced, so as to run nicely against the inner sides of the boxes F, bolted to the side beams by suitable bolts G. The roll is secured to its axle H by keys I, and these are held from working out by the spiders abutting on their outer ends, as shown in Fig. 3. The axle is made tubular for the sake of strength and lightness and also to serve as a receptacle for oil. Its ends are threaded, and in them are fitted screw-plugs H'. The oil escapes in suitable small quantities to the bearings through small holes H2.

In practice the lubrication of the dolly'is an important feature and is generally neglected, so that the roll usually runs hard and dry. This is largely due to the fact that the dolly is used only occasionally and does not therefore have the care that is given to a machine in daily and constant use. By my improvement the dolly is made self-oiling While in use, and when at rest the oil is retained in the tubular axle. The roll is preferably made a little crowning in the middle, so as to be IOO easily turned or cut, as it is commonly expressed, to move the timber at any desired angle.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

l. In a timbendolly, the combination with a suitable roll and bearings therefor, of a frame comprising two side beams and a pair of cross-beams, the side beams being diagonally gained on the inner side to take the ends of the cross-beams, said cross-beams being beveled to correspond therewith, tierods adjacent to said cross-beams, and bolts passing vertically through the side beams and partially through the ends of the crossbeams, whereby the whole frame is securely bound and locked together.

2. In a timber-dolly, the combination with a frame substantially as described, of a tubular roll therefor, having heads iitted in its ends, tie-rods to draw them securely in position, and spiders having sockets in their arms to engage and hold the nuts and heads of said tie-rods.

3. In a timber-dolly, the combination with a suitable frame, of a roll, comprisinga tubular body, heads tted in its ends, tie-rods connecting said heads, an axle and keys to retain the heads thereon, and spiders externai to the heads having nut-sockets in their arms to engage the nuts and heads of the tierods, and adapted to hold said keys in place when in position.

4:. In a timber-dolly, the combination with a suitable frame, bearings and roll, substantially as described, ot a tubular axle for the roll, provided with oil-holes at the bearings, and plugs screwed in the ends to retain said oil.

In testimony whereof I affix my signature in presence of two Witnesses.

JAMES L. BAYLEY. Witnesses:

JOHN J. SMITH, R. A. HUTCHINsoN.

Images